Dataset: Quadrat Metadata

Name: Metadata used for developing model for transmission of the sponge disease Aplysina Red Band Syndrome from reef surveys conducted in the Exuma Cays, Bahamas, and Carrie Bow Cay, Belize from 2009-2014
Published: 2015-09-01
Keywords: biota, oceans

Cite This Dataset

Spatial Extent: N:23.79663 E:-76.1353 S:16.80436 W:-88.089316

Temporal Extent: 2009-05 - 2014-07

Project:

Developing a model for transmission of an infectious disease of marine sponges (Sponge Disease Model)

Principal Investigator:

Deborah J. Gochfeld (University of Mississippi, UM-NCNPR)

Co-Principal Investigator:

Marilyn Brandt (University of the Virgin Islands Center for Marine and Environmental Studies)

Julie Olson (University of Alabama-Tuscaloosa, UA/Tuscaloosa)

Contact:

Deborah J. Gochfeld (University of Mississippi, UM-NCNPR)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

01 Sept 2015

Version Date:

2015-09-01

Restricted:

Validated:

Current State:

Final no updates expected

Metadata used for developing model for transmission of the sponge disease Aplysina Red Band Syndrome from reef surveys conducted in the Exuma Cays, Bahamas, and Carrie Bow Cay, Belize from 2009-2014

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Description

See related publication: Easson et al. (2013)

Methods & Sampling

Collection of data:
Data were generated from repeated 100 m² quadrats on two patch reefs in the Exuma Cays, Bahamas (Big Point, Rainbow Gardens) and two reefs near Carrie Bow Cay, Belize (Patch reef 1, Patch reef 2). Reefs are all in 5 m water depth. In Bahamas, the Big Point quadrat was surveyed 8 times (May 2009, May 2010, May/July/September 2011, June 2012, August 2013, July 2014) and the Rainbow Gardens quadrat was surveyed 6 times (May 2010, July/September 2011, June 2012, August 2013, July 2014). This sampling schedule spans the interval during which Hurricane Irene (Category 3) impacted these reefs in the Bahamas on 27 August 2011 (Easson et al. 2013). In Belize, quadrats on both reefs were surveyed twice (May 2012, June 2013).

During each survey, the entire quadrat was photographed in 1 m², and every individual Aplysina cauliformis sponge was marked on an underwater map and total length was measured to the nearest cm. Whether the sponge was healthy or infected by Aplysina Red Band Syndrome was also recorded.

Data Processing Description

Data analysis:
Each sponge was georeferenced onto a map generated from the quadrat images in ArcGIS to create a shapefile in which each sponge’s location, size, number of branches and health status were recorded. For each quadrat at each point in time, the numbers of contacts between healthy-healthy, healthy-diseased and diseased-diseased sponges were calculated based on sponge location, total length and number of branches (based on methods in Easson et al. 2013). Percent of disease transmission was calculated as the percent of all sponge contacts that were between two diseased sponges.

Download the shapefiles here (225 kb zip file)

BCO-DMO Processing Notes:
- Modified parameter names to conform with BCO-DMO naming conventions;
- Added lat and lon values from the metadata form;
- Replaced spaces with underscores in the site column;
- Replaced commas with semi-colons in the notes column;
- 14-Nov-2018: removed embargo on dataset.

Data Files

File
Quadrat_metadata.csv (Comma Separated Values (.csv), 2.00 KB) MD5:c9c40f2cc88dd35c5afb04d3ad15a691 Primary data file for dataset ID 565305

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1214303

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Bahamas_Gochfeld		2009-05-01	Gochfeld_lab	Deborah J. Gochfeld (Principal Investigator)	data info
Belize_Gochfeld		2012-05-01	Gochfeld_lab	Deborah J. Gochfeld (Principal Investigator)	data info

Instruments

Camera

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Camera

Acronym: camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/311/

Generic Description:

All types of photographic equipment including stills, video, film and digital systems.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
location	Site location (Belize or Bahamas).	dimensionless	no_bcodmo_term
site	Site name.	dimensionless	site
lat	Latitude of site.	decimal degrees	lat
lon	Longitude of site.	decimal degrees	lon
date	Month and year of sampling.	dimensionless	date
month	2-digit month of sampling.	mm (01 to 12)	month
year	4-digit year of sampling	YYYY	year
healthy	Number of healthy sponges.	dimensionless	no_bcodmo_term
diseased	Number of diseased sponges.	dimensionless	no_bcodmo_term
total	Total number of sponges (healthy + diseased).	dimensionless	no_bcodmo_term
disease_prevalence	Disease prevalence = (number diseased/total) x 100	percentage (%)	no_bcodmo_term
healthy_healthy_contacts	Healthy-healthy sponge contacts.	dimensionless	no_bcodmo_term
healthy_diseased_contacts	Healthy-diseased sponge contacts.	dimensionless	no_bcodmo_term
diseased_diseased_contacts	Diseased-diseased sponge contacts.	dimensionless	no_bcodmo_term
total_contacts_w_diseased	Total contacts with diseased sponges (sum of healthy_diseased_contacts and diseased_diseased_contacts)	dimensionless	no_bcodmo_term
proportion_transmission	Proportion of Disease contacts that resulted in transmission.	Alpha value (D:D/total)	no_bcodmo_term
pcnt_transmission	Percent transmission = proportion_transmission x 100.	percent (%)	no_bcodmo_term
notes	Notes.	dimensionless	comment

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Database

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Dataset: Quadrat Metadata